8X8_LED點(diǎn)陣顯示驅(qū)動(dòng)程序以及原理圖

1、在8x8led點(diǎn)陣上顯示柱形，讓其先從左到右平滑移動(dòng)三次，其次從右到左平滑移動(dòng)三次，再次從上到下平滑移動(dòng)三次，最后從下到上平滑移動(dòng)三次，如此循環(huán)下去。電路原理圖vsqcnrR1紜R2R3豐囂R8RlIicL否二jfIM-innLl11t13CR3liGR4isCRSisefefii,17P1,0pad/adciPl1E1/AI1P1.2Pti.2/AD2P1.3P.2/AD3F1月FQ4/AEMP1.5PO3/AD3F16PO-iS/AMF17P0.7/AD7ALEP2.WA1J：pa.trrwPSr5/J14PH.盅IHTCiP2SKA13F3.3/1HT1P2;.4/A12P3.rroP2

2、.3JAI1P35/T1P2：S/A1OF3aenVRP2P2.7/TLDP2.0/AS應(yīng)1U236a站333C23tl帖27站23?43322511工何H=GND圖4241硬件電路連線.把“單片機(jī)系統(tǒng)”區(qū)域中的pl端口用8芯排芯連接到“點(diǎn)陣模塊”區(qū)域中的“drldr8”端口上;.把“單片機(jī)系統(tǒng)”區(qū)域中的p3端口用8芯排芯連接到“點(diǎn)陣模塊”區(qū)域中的“deldc8,端口上;程序設(shè)計(jì)內(nèi)容(1).8x8點(diǎn)陣led工作原理說(shuō)明8x8點(diǎn)陣led結(jié)構(gòu)如下圖所示DCSL*X.尹TDC61*DC5*尹TDC4興DC3袴DC2郛*細(xì)*Qiom圖4.24.2從圖4.24.2中可以看出，8x8點(diǎn)陣共需要64個(gè)發(fā)光二

3、極管組成，且每個(gè)發(fā)光二極管是放置在行線和列線的交叉點(diǎn)上，當(dāng)對(duì)應(yīng)的某一列置1電平，某一行置0電平，貝9相應(yīng)的二極管就亮；因此要實(shí)現(xiàn)一根柱形的亮法，如圖49所示，對(duì)應(yīng)的一列為一根豎柱，或者對(duì)應(yīng)的一行為一根橫柱，因此實(shí)現(xiàn)柱的亮的方法如下所述：一根豎柱：對(duì)應(yīng)的列置1,而行則采用掃描的方法來(lái)實(shí)現(xiàn)。一根橫柱：對(duì)應(yīng)的行置0,而列則采用掃描的方法來(lái)實(shí)現(xiàn)。匯編源程序org00hstart:nopmovr3,#3lop2:movr4,#8movr2,#0lop1:movp1,#0ffhmovdptr,#tabamova,r2movca,a+dptrmovp3,aincr2lcalldelaydjnzr4,lop1

4、djnzr3,lop2movr3,#3lop4:movr4,#8movr2,#7lop3:movp1,#0ffhmovdptr,#tabamova,r2movca,a+dptrmovp3,adecr2lcalldelaydjnzr4,lop3djnzr3,lop4movr3,#3lop6:movr4,#8movr2,#0lop5:movp3,#00hmovdptr,#tabbmova,r2movca,a+dptrmovp1,aincr2lcalldelaydjnzr4,lop5djnzr3,lop6movr3,#3lop8:movr4,#8movr2,#7lop7:movp3,#00hmovd

5、ptr,#tabbmova,r2movca,a+dptrmovp1,adecr2lcalldelaydjnzr4,lop7djnzr3,lop8ljmpstartdelay:movr5,#10d2:movr6,#20d1:movr7,#248djnzr7,$djnzr6,d1djnzr5,d2rettaba:db0feh,0fdh,0fbh,0f7h,0efh,0dfh,0bfh,07fhtabb:db01h,02h,04h,08h,10h,20h,40h,80hendc語(yǔ)言源程序#includeunsignedcharcodetaba=0 xfe,0 xfd,0 xfb,0 xf7,0 xe

6、f,0 xdf,0 xbf,0 x7f;unsignedcharcodetabb=0 x01,0 x02,0 x04,0 x08,0 x10,0 x20,0 x40,0 x80;voiddelay(void)unsignedchari,j;for(i=10;i0;i-)for(j=248;j0;j-);voiddelay1(void)unsignedchari,j,k;for(k=10;k0;k-)for(i=20;i0;i-)for(j=248;j0;j-);voidmain(void)unsignedchari,j;while(1)for(j=0;j3;j+)/fromlefttoright3timefor(i=0;i8;i+)p3=tabai;p1=0 xff;delay1();for(j=0;j3;j+)/fromrighttoleft3timefor(i=0;i8;i+)p3=taba7-i;p1=0 xff;delay1();for(j=0;j3;j+)/fromtoptobottom3timefor(i=0;i8;i+)p3